The Biran 70 embodies a new era of vibration minnows, incorporating Megabass' latest hydrodynamics technology to create a lure that is less prone to rising to the surface than conventional vibrations and boasts superior depth-keeping capabilities. Developed to break through the limitations of previous resin vibrations and to create a new standard for saltwater vibrations, it features a special fiberglass fin mounted on the back of the body. By thinning the body thickness to the absolute minimum from the fin to the back, it achieves superior water-cutting performance that surpasses metal vibrations, achieved through injection molding. During the fall, the fin's streamlining effect maintains the sinking posture of actual baitfish. This also thoroughly reduces line entanglement problems with the hook. While conventional vibrations tend to swim vertically due to their structure, the Biran's swimming silhouette is closer to a horizontal posture, synchronizing with the swimming posture of actual baitfish. It approaches targets with a natural swimming performance.